The encyclical letter Laudato Si is available here on the Vatican website.
55. Some countries are gradually making significant progress, developing more effective controls and working to combat corruption. People may well have a growing ecological sensitivity but it has not succeeded in changing their harmful habits of consumption which, rather than decreasing, appear to be growing all the more. A simple example is the increasing use and power of air-conditioning. The markets, which immediately benefit from sales, stimulate ever greater demand. An outsider looking at our world would be amazed at such behavior, which at times appears self-destructive.
I recall this paragraph attracting attention. A few commentators mocked Pope Francis for “criticizing” air conditioning and flying on planes.
This section mentions “the increasing use and power” of cooling our buildings. Not the use, period. We’ve all experienced summer buildings “too cold” for summer wear. We can power a greenhouse and literally turn it into a refrigerator. But should we? If the temperature outside is 100F, we can cool a building to a comfortable 75, or 80.
The question here involves thoughtfulness: where should a home or business set its thermostat? The range of temperatures I’ve experienced outside is, on the Fahrenheit scale, zero to a hundred. To what range am I entitled to live in my house? 70 to 72? 65 to 75? 60 to 80? What would a power company market as the optimal level of “comfort”?